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Finding the Fourth Proportional to 620,662.59, 930,992.12 and 165,253.78

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Solution

The fourth proportional to 620,662.59, 930,992.12 and 165,253.78 is: 247,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,662.59 : 930,992.12 = 165,253.78 : x
  2. Step 2: Convert to fraction form
    620,662.59/930,992.12 = 165,253.78/x
  3. Step 3: Cross multiply
    620,662.59x = 930,992.12 × 165,253.78
  4. Step 4: Simplify right side
    620,662.59x = 153,849,969,014.21
  5. Step 5: Solve for x
    x = 153,849,969,014.21/620,662.59
  6. Step 6: Final answer
    x = 247,880.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.